Demagnetization power supply device for ship, and demagnetization signal generation method

A power supply device and signal generation technology, which are applied in the output power conversion device, electrical components, and AC power input conversion to AC power output, etc., can solve the problems of large errors and inaccurate waveforms, and achieve good waveform coefficients and reduce impact. , high precision effect

Inactive Publication Date: 2019-07-19
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, since the rectifier bridge diode and the commutation unit have a fixed tube voltage drop, the existing degaussing power supply has the problem that the waveform is not accurate enough and the error is large when the voltage near zero voltage is output.

Method used

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  • Demagnetization power supply device for ship, and demagnetization signal generation method
  • Demagnetization power supply device for ship, and demagnetization signal generation method
  • Demagnetization power supply device for ship, and demagnetization signal generation method

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Embodiment Construction

[0015] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0016] A degaussing power supply device for a ship provided by an embodiment of the present invention includes an LLC conversion module, an H4 inverter module, an LCL filter module, and a common-mode suppression module, the LLC conversion module, the H4 inverter module, the The LCL filter module and the common mode suppression module are electrically connected in sequence, the input terminal of the LLC conversion module is connected to a DC voltage, and the output terminal of the common mode suppression module outputs a degaussing sine wave.

[0017] In this embodiment, the LLC (resonant circuit) conversion module is used to isolate and output a fixed DC voltage, and by adjusting the voltage difference between the tw...

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Abstract

The invention relates to a demagnetization power supply device for a ship, and a demagnetization signal generation method. The device comprises an LLC conversion module, an H4 inverter module, an LCLfilter module and a common mode rejection module which are electrically connected in sequence; the input end of the LLC conversion module is connected with a direct-current voltage; and the output endof the common mode rejection module outputs a demagnetization sine wave. According to the technical scheme, the demagnetization sine wave with a better waveform coefficient and higher precision can be obtained, and the influence on sensitive equipment on the ship is reduced.

Description

technical field [0001] The invention relates to the technical field of degaussing power supplies, in particular to a degaussing power supply device and a degaussing signal generation method for ships. Background technique [0002] Whether it is a new ship or a ship that has been used for a certain period of time, it has a certain degree of magnetism. In order to defend against the attack of magnetic weapons in water, such as magnetic induction mines, or to avoid being discovered by magnetic detectors, to ensure the safety of the ship's navigation, The ship needs to be degaussed to reduce the magnetic field strength of the ship and improve the distribution characteristics. To reduce the magnetic field of the ship, it is necessary to add another magnetic field opposite to the magnetic field of the ship, and use this reverse magnetic field compensation to offset the magnetic field of the ship. [0003] The reverse magnetic field can be generated by the degaussing power supply,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/458H02M1/14
CPCH02M1/14H02M5/458H02M1/123
Inventor 张波涛
Owner WUHAN UNIV OF SCI & TECH
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